package net.minecraft.entity.monster;

import java.util.Calendar;
import net.minecraft.block.Block;
import net.minecraft.enchantment.Enchantment;
import net.minecraft.enchantment.EnchantmentHelper;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityCreature;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.EnumCreatureAttribute;
import net.minecraft.entity.IEntityLivingData;
import net.minecraft.entity.IRangedAttackMob;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.EntityAIArrowAttack;
import net.minecraft.entity.ai.EntityAIAttackOnCollide;
import net.minecraft.entity.ai.EntityAIAvoidEntity;
import net.minecraft.entity.ai.EntityAIFleeSun;
import net.minecraft.entity.ai.EntityAIHurtByTarget;
import net.minecraft.entity.ai.EntityAILookIdle;
import net.minecraft.entity.ai.EntityAINearestAttackableTarget;
import net.minecraft.entity.ai.EntityAIRestrictSun;
import net.minecraft.entity.ai.EntityAISwimming;
import net.minecraft.entity.ai.EntityAIWander;
import net.minecraft.entity.ai.EntityAIWatchClosest;
import net.minecraft.entity.passive.EntityWolf;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.projectile.EntityArrow;
import net.minecraft.init.Blocks;
import net.minecraft.init.Items;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.potion.Potion;
import net.minecraft.potion.PotionEffect;
import net.minecraft.stats.AchievementList;
import net.minecraft.util.BlockPos;
import net.minecraft.util.DamageSource;
import net.minecraft.world.DifficultyInstance;
import net.minecraft.world.World;
import net.minecraft.world.WorldProviderHell;

public class EntitySkeleton extends EntityMob implements IRangedAttackMob {
	private EntityAIArrowAttack aiArrowAttack = new EntityAIArrowAttack(this, 1.0D, 20, 60, 15.0F);
	private EntityAIAttackOnCollide aiAttackOnCollide = new EntityAIAttackOnCollide(this, EntityPlayer.class, 1.2D,
			false);

	public EntitySkeleton(World worldIn) {
		super(worldIn);
		this.tasks.addTask(1, new EntityAISwimming(this));
		this.tasks.addTask(2, new EntityAIRestrictSun(this));
		this.tasks.addTask(3, new EntityAIFleeSun(this, 1.0D));
		this.tasks.addTask(3, new EntityAIAvoidEntity(this, EntityWolf.class, 6.0F, 1.0D, 1.2D));
		this.tasks.addTask(4, new EntityAIWander(this, 1.0D));
		this.tasks.addTask(6, new EntityAIWatchClosest(this, EntityPlayer.class, 8.0F));
		this.tasks.addTask(6, new EntityAILookIdle(this));
		this.targetTasks.addTask(1, new EntityAIHurtByTarget(this, false, new Class[0]));
		this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityPlayer.class, true));
		this.targetTasks.addTask(3, new EntityAINearestAttackableTarget(this, EntityIronGolem.class, true));

		if (worldIn != null && !worldIn.isRemote) {
			this.setCombatTask();
		}
	}

	protected void applyEntityAttributes() {
		super.applyEntityAttributes();
		this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setBaseValue(0.25D);
	}

	protected void entityInit() {
		super.entityInit();
		this.dataWatcher.addObject(13, new Byte((byte) 0));
	}

	/**
	 * Returns the sound this mob makes while it's alive.
	 */
	protected String getLivingSound() {
		return "mob.skeleton.say";
	}

	/**
	 * Returns the sound this mob makes when it is hurt.
	 */
	protected String getHurtSound() {
		return "mob.skeleton.hurt";
	}

	/**
	 * Returns the sound this mob makes on death.
	 */
	protected String getDeathSound() {
		return "mob.skeleton.death";
	}

	protected void playStepSound(BlockPos pos, Block blockIn) {
		this.playSound("mob.skeleton.step", 0.15F, 1.0F);
	}

	public boolean attackEntityAsMob(Entity entityIn) {
		if (super.attackEntityAsMob(entityIn)) {
			if (this.getSkeletonType() == 1 && entityIn instanceof EntityLivingBase) {
				((EntityLivingBase) entityIn).addPotionEffect(new PotionEffect(Potion.wither.id, 200));
			}

			return true;
		} else {
			return false;
		}
	}

	/**
	 * Get this Entity's EnumCreatureAttribute
	 */
	public EnumCreatureAttribute getCreatureAttribute() {
		return EnumCreatureAttribute.UNDEAD;
	}

	/**
	 * Called frequently so the entity can update its state every tick as required.
	 * For example, zombies and skeletons use this to react to sunlight and start to
	 * burn.
	 */
	public void onLivingUpdate() {
		if (this.worldObj.isDaytime() && !this.worldObj.isRemote) {
			float f = this.getBrightness(1.0F);
			BlockPos blockpos = new BlockPos(this.posX, (double) Math.round(this.posY), this.posZ);

			if (f > 0.5F && this.rand.nextFloat() * 30.0F < (f - 0.4F) * 2.0F && this.worldObj.canSeeSky(blockpos)) {
				boolean flag = true;
				ItemStack itemstack = this.getEquipmentInSlot(4);

				if (itemstack != null) {
					if (itemstack.isItemStackDamageable()) {
						itemstack.setItemDamage(itemstack.getItemDamage() + this.rand.nextInt(2));

						if (itemstack.getItemDamage() >= itemstack.getMaxDamage()) {
							this.renderBrokenItemStack(itemstack);
							this.setCurrentItemOrArmor(4, (ItemStack) null);
						}
					}

					flag = false;
				}

				if (flag) {
					this.setFire(8);
				}
			}
		}

		if (this.worldObj.isRemote && this.getSkeletonType() == 1) {
			this.setSize(0.72F, 2.535F);
		}

		super.onLivingUpdate();
	}

	/**
	 * Handles updating while being ridden by an entity
	 */
	public void updateRidden() {
		super.updateRidden();

		if (this.ridingEntity instanceof EntityCreature) {
			EntityCreature entitycreature = (EntityCreature) this.ridingEntity;
			this.renderYawOffset = entitycreature.renderYawOffset;
		}
	}

	/**
	 * Called when the mob's health reaches 0.
	 */
	public void onDeath(DamageSource cause) {
		super.onDeath(cause);

		if (cause.getSourceOfDamage() instanceof EntityArrow && cause.getEntity() instanceof EntityPlayer) {
			EntityPlayer entityplayer = (EntityPlayer) cause.getEntity();
			double d0 = entityplayer.posX - this.posX;
			double d1 = entityplayer.posZ - this.posZ;

			if (d0 * d0 + d1 * d1 >= 2500.0D) {
				entityplayer.triggerAchievement(AchievementList.snipeSkeleton);
			}
		} else if (cause.getEntity() instanceof EntityCreeper && ((EntityCreeper) cause.getEntity()).getPowered()
				&& ((EntityCreeper) cause.getEntity()).isAIEnabled()) {
			((EntityCreeper) cause.getEntity()).func_175493_co();
			this.entityDropItem(new ItemStack(Items.skull, 1, this.getSkeletonType() == 1 ? 1 : 0), 0.0F);
		}
	}

	protected Item getDropItem() {
		return Items.arrow;
	}

	/**
	 * Drop 0-2 items of this living's type
	 */
	protected void dropFewItems(boolean p_70628_1_, int p_70628_2_) {
		if (this.getSkeletonType() == 1) {
			int i = this.rand.nextInt(3 + p_70628_2_) - 1;

			for (int j = 0; j < i; ++j) {
				this.dropItem(Items.coal, 1);
			}
		} else {
			int k = this.rand.nextInt(3 + p_70628_2_);

			for (int i1 = 0; i1 < k; ++i1) {
				this.dropItem(Items.arrow, 1);
			}
		}

		int l = this.rand.nextInt(3 + p_70628_2_);

		for (int j1 = 0; j1 < l; ++j1) {
			this.dropItem(Items.bone, 1);
		}
	}

	/**
	 * Causes this Entity to drop a random item.
	 */
	protected void addRandomDrop() {
		if (this.getSkeletonType() == 1) {
			this.entityDropItem(new ItemStack(Items.skull, 1, 1), 0.0F);
		}
	}

	/**
	 * Gives armor or weapon for entity based on given DifficultyInstance
	 */
	protected void setEquipmentBasedOnDifficulty(DifficultyInstance difficulty) {
		super.setEquipmentBasedOnDifficulty(difficulty);
		this.setCurrentItemOrArmor(0, new ItemStack(Items.bow));
	}

	/**
	 * Called only once on an entity when first time spawned, via egg, mob spawner,
	 * natural spawning etc, but not called when entity is reloaded from nbt. Mainly
	 * used for initializing attributes and inventory
	 */
	public IEntityLivingData onInitialSpawn(DifficultyInstance difficulty, IEntityLivingData livingdata) {
		livingdata = super.onInitialSpawn(difficulty, livingdata);

		if (this.worldObj.provider instanceof WorldProviderHell && this.getRNG().nextInt(5) > 0) {
			this.tasks.addTask(4, this.aiAttackOnCollide);
			this.setSkeletonType(1);
			this.setCurrentItemOrArmor(0, new ItemStack(Items.stone_sword));
			this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setBaseValue(4.0D);
		} else {
			this.tasks.addTask(4, this.aiArrowAttack);
			this.setEquipmentBasedOnDifficulty(difficulty);
			this.setEnchantmentBasedOnDifficulty(difficulty);
		}

		this.setCanPickUpLoot(this.rand.nextFloat() < 0.55F * difficulty.getClampedAdditionalDifficulty());

		if (this.getEquipmentInSlot(4) == null) {
			Calendar calendar = this.worldObj.getCurrentDate();

			if (calendar.get(2) + 1 == 10 && calendar.get(5) == 31 && this.rand.nextFloat() < 0.25F) {
				this.setCurrentItemOrArmor(4,
						new ItemStack(this.rand.nextFloat() < 0.1F ? Blocks.lit_pumpkin : Blocks.pumpkin));
				this.equipmentDropChances[4] = 0.0F;
			}
		}

		return livingdata;
	}

	/**
	 * sets this entity's combat AI.
	 */
	public void setCombatTask() {
		this.tasks.removeTask(this.aiAttackOnCollide);
		this.tasks.removeTask(this.aiArrowAttack);
		ItemStack itemstack = this.getHeldItem();

		if (itemstack != null && itemstack.getItem() == Items.bow) {
			this.tasks.addTask(4, this.aiArrowAttack);
		} else {
			this.tasks.addTask(4, this.aiAttackOnCollide);
		}
	}

	/**
	 * Attack the specified entity using a ranged attack.
	 */
	public void attackEntityWithRangedAttack(EntityLivingBase p_82196_1_, float p_82196_2_) {
		EntityArrow entityarrow = new EntityArrow(this.worldObj, this, p_82196_1_, 1.6F,
				(float) (14 - this.worldObj.getDifficulty().getDifficultyId() * 4));
		int i = EnchantmentHelper.getEnchantmentLevel(Enchantment.power.effectId, this.getHeldItem());
		int j = EnchantmentHelper.getEnchantmentLevel(Enchantment.punch.effectId, this.getHeldItem());
		entityarrow.setDamage((double) (p_82196_2_ * 2.0F) + this.rand.nextGaussian() * 0.25D
				+ (double) ((float) this.worldObj.getDifficulty().getDifficultyId() * 0.11F));

		if (i > 0) {
			entityarrow.setDamage(entityarrow.getDamage() + (double) i * 0.5D + 0.5D);
		}

		if (j > 0) {
			entityarrow.setKnockbackStrength(j);
		}

		if (EnchantmentHelper.getEnchantmentLevel(Enchantment.flame.effectId, this.getHeldItem()) > 0
				|| this.getSkeletonType() == 1) {
			entityarrow.setFire(100);
		}

		this.playSound("random.bow", 1.0F, 1.0F / (this.getRNG().nextFloat() * 0.4F + 0.8F));
		this.worldObj.spawnEntityInWorld(entityarrow);
	}

	/**
	 * Return this skeleton's type.
	 */
	public int getSkeletonType() {
		return this.dataWatcher.getWatchableObjectByte(13);
	}

	/**
	 * Set this skeleton's type.
	 */
	public void setSkeletonType(int p_82201_1_) {
		this.dataWatcher.updateObject(13, Byte.valueOf((byte) p_82201_1_));
		this.isImmuneToFire = p_82201_1_ == 1;

		if (p_82201_1_ == 1) {
			this.setSize(0.72F, 2.535F);
		} else {
			this.setSize(0.6F, 1.95F);
		}
	}

	/**
	 * (abstract) Protected helper method to read subclass entity data from NBT.
	 */
	public void readEntityFromNBT(NBTTagCompound tagCompund) {
		super.readEntityFromNBT(tagCompund);

		if (tagCompund.hasKey("SkeletonType", 99)) {
			int i = tagCompund.getByte("SkeletonType");
			this.setSkeletonType(i);
		}

		this.setCombatTask();
	}

	/**
	 * (abstract) Protected helper method to write subclass entity data to NBT.
	 */
	public void writeEntityToNBT(NBTTagCompound tagCompound) {
		super.writeEntityToNBT(tagCompound);
		tagCompound.setByte("SkeletonType", (byte) this.getSkeletonType());
	}

	/**
	 * Sets the held item, or an armor slot. Slot 0 is held item. Slot 1-4 is armor.
	 * Params: Item, slot
	 */
	public void setCurrentItemOrArmor(int slotIn, ItemStack stack) {
		super.setCurrentItemOrArmor(slotIn, stack);

		if (!this.worldObj.isRemote && slotIn == 0) {
			this.setCombatTask();
		}
	}

	public float getEyeHeight() {
		return this.getSkeletonType() == 1 ? super.getEyeHeight() : 1.74F;
	}

	/**
	 * Returns the Y Offset of this entity.
	 */
	public double getYOffset() {
		return this.isChild() ? 0.0D : -0.35D;
	}
}
